window.addEvent('domready', function(){
	if($('bi-container')) {
		var BScroller = new Class({						initialize: function() {
				this.current = 0;				this.items = $$('#bi-container .bi-item');				this.timer = null;				this.interval = 3000;				this.allow_change = true;
				this.setActionHandlers();				this.startTimer();			}		});
		BScroller.implement({
			setActionHandlers: function() {				var obj = this;
				$('b_prev').addEvent('click', function(e) {
					new Event(e).stop();					obj.showPrev();				});
				$('b_next').addEvent('click', function(e) {
					new Event(e).stop();					obj.showNext();				});			}, 
			show: function(item_id) {
				var obj = this;				obj.allow_change = false;
				var hide_ef = new Fx.Morph(obj.items[obj.current], {
					duration: 100,					onComplete: function() {
						obj.items[obj.current].addClass('hidden');						obj.current = item_id;						obj.items[obj.current].setStyle('opacity', 0);						obj.items[obj.current].removeClass('hidden');
						var show_ef = new Fx.Morph(obj.items[obj.current], {
							duration: 800, 							onComplete: function() {
								obj.allow_change = true;							}						});
						show_ef.start({							opacity: [0, 1]						});					}				});
				hide_ef.start({					opacity: [1, 0]				});			},
			showPrev: function() {
				this.stopTimer();
				if(!this.allow_change) {
					return;				}				if(this.current == 0) {										this.show(this.items.length - 1);				}				else {										this.show(this.current - 1);
				}			}, 
			showNext: function() {
				this.stopTimer();
				if(!this.allow_change) {
					return;				}								if(this.current == this.items.length - 1) {										this.show(0);				}				else {										this.show(this.current + 1);				}
			}, 
			stopTimer: function() {
				if(this.timer) {
					clearInterval(this.timer);				}			}, 
			startTimer: function() {
				var obj = this;
				obj.timer = setInterval(function() {
					if(obj.current < obj.items.length - 1) {
						var next = obj.current + 1;					}					else {
						var next = 0;					}
					obj.show(next);
				}, obj.interval);			}		});
		new BScroller;	}});